//
// Created by jsjxsy on 2022/6/29.
//
#include <stdio.h>
#include <stdbool.h>
#define MIN(a, b) (a) < (b) ? (a):(b)

#define IS_CHAR(ch) \
((ch) >= 'a' && (ch) <= 'z') ||\
((ch) >= 'A' && (ch) <= 'Z')

int main() {
  float min = MIN(2.5, 3.5);
  printf("MIN(2.5, 3.5): %.1f\n", min);
  _Bool  is_char = IS_CHAR("0");
  printf("IS_CHAR(\"0\"): %d\n", is_char);
  return 0;
}
